Flood-gate for culverts



Oct. 10, 1933. s. TREVERTON FLOOD GATE FOR CULVERTS Filed Nov. 12, 19292 Sheets-Sheet l gwwwtoz Stephen Fez/etch Oct. 10, 1933. TREVERTQN1,929,527

FLOOD GATE FOR CULVERTS Filed Nov. 12. 1929 2 Shets-Shet 2 Patented Oct.10, 1933 FLOOD- GATE FOR CULVERTS Stephen Treverton, Canton, Ohio,assignor, by mesne assignments, to Republic Steel $011307, ration,Youngstown, Ohio, a corporation of New Jersey Application November 12,1929 Serial No. 408,637

7 Claims. (01. 251-123) This invention relates in general to culvert Theends 2d of the clamp member are apertured gates, and more particularlyto a novel flood-gate for the reception of connecting bolts. for theoutlet end of a corrugated culvert or the The lower clamp member 3 is asemi-circular in like. elevation, and has a gently sloping rear portionh pr m ry bje of he inv nti n is to pr 3a and an abruptly sloping frontportion at. The vide a gate for the outlet end of a corrugated ends 3cof the clamp member are apertured for 011lVe1'i1,Whih Shall permitdischarge of draina the reception of connecting bolts and are also watertherefrom, and shall be parti ul y effecprovided with shoulders 3d whichserve a purpose tive to prevent back-flow of flood waters into the to bepresently described. d culvert during floor periods. The supporting link5 is provided at its upper '66 An th Obj c f e i ve t is to p v end withspaced apertured bearings 5a and at its a novel cast-iron floodgate forcorrugated culverts lower end t a hook 5 and a finger 5 and the like,which shall consist of a minimum The cover plate 7 is provided withspaced ribs number of asi y m nufa re pa a pt to la, the lower ends ofwhich are apertured for the 1 be readily assembled in the field, and inthe asreception of the lower hinge pinv 6. The web lb (0 sfi b y ofWhich, & Water-tight Seal a t b of the cover plate is provided on itsrear face with flow of floodwaters is formed at the outlet end of a, raied nnm portion 7 hi h i da tedt the culvert. seat against the front edge1d of the ring 1.

With the above and other objects in view, which In assembling taforesaid parts t ring 1 will be more ead y pp as the nature 0f the isinserted as far as possible into the end of the 75 invention is betterunderstood, the same consists corrugated culvert g, as shown in Fig 2, tt in the novel construction, combination and argently sloping rear face.1b thereof in contact lallgement of parts hereinafter mOre fully withthe inner surface of the culvert. The upper scribed, illustrated and caimed. clamp member 2 is then placed in position with A preferred andpractical embodiment of the the portion 21) thereof in contact with theface Q0 invention is ShOW n the p ying drawings of the ring 1 and theportion 2a thereof in' wherein i contact with the end of the culvert.The lower g 1 is a front elevation of the assembled clamp member 3 issimilarly placed against the gate; lower portion of the culvert end, andbolts 9 are 3t Fig. 2 is a cross-section through the assembled thinserted through the aligned apertures'ln 85 e, taken o the line of Fthe ends and 2d of the clamp members 3 and 3 is all eXplOded View Of thering and C p 2 respectively. Nuts 9a serve to draw the clamp members;members 2 and 3 together and thereby, positively F g. 4 is a fragmentarySide elevat on of adgrip the end corrugation of the culvert betweenjacent ends of the clamp members, showing the the ring 1 and the clampmembers. In thus manner in which these members are secured to drawingthe clamp members 2 and 3 together,

each other, and the abruptly slopingfront portions 2b and 3b 5 is aCross-Section, taken on the e 5-5 respectively thereof bear on theabruptly sloping of Fig. 4. front face 10 of the ring 1, thereby forcingthe 0 Referring more particularly to the drawings, ring 1 backwards."Perfectly tight joints between wherein like reference charactersdesignate corthe ring 1 and the end of the culvert and betweenresponding parts throughout the several views the the end of the culvertand the clamp members gate consists of a ring 1, an upper clamp member 2and 3 are thus secured. Rotation of the bolts 2. a low clamp member 3.1ppe hin e pin 9 during the operation of drawing the clamp 45 4, asupporting link 5, a lower hinge pin 6 and a members together isprevented by means of the cover plate 7. shoulders 3d on the lower clampmember 3, these Th f a i p v W a e ipheral anshoulders coming intoabutment with the heads nular rib 1a hav a tly sl pi ar fac 1b of thebolts 9 should the bolts begin to turn.

and an abruptly sloping front face 10. The front It will be noted thatthe portions 2b and 3b edge 1d of the ring is inclined as shown in Fig.of the clamp members 2 and 3 respectively serve 2 for a purpose to bepresently disclosed. to prevent withdrawal of the ring from the cul- Theupper clamp member 2 is semi-circular in 'vert.

elevation, has a gently sloping rear portion 2a, an The supporting link5 is thenplaced in such abruptly sloping front portion 2b, and isprovided position that the apertures in its bearings 5a are 55 withspaced apertured upstanding bearings 20. aligned with the apertures inthebearings 2c, M

and the upper hinge pin 4 is then inserted through the alignedapertures, as shown in Figs. 1 and 2. The lower hinge pin 6 is theninserted in the apertures in th spaced ribs 7a of the cover plate 7, andthe latter suspended from the link 5, the pin 6 lying within the hook512 of the link.

It shouldbe noted that when the various parts have been assembled in theaforesaid manner, the cover plate '7 lies upon the inclined edge id ofthe ring 1, and the centers of gravity of both the cover plate and thelink 5 lie outside and in advance of a vertical plane through thelongitudinal axis of the upper hinge pin a. Portions of the weight ofthe cover plate and its supportlink are thus utilized to maintain thecover plate in closed position, and the cover plate will open only whenthe water pressure in the culvert 8 is sufficiently great to overcomethe pressure of the cover plate and its supporting link against thering 1. The pivotal mounting of the cover plate 7 on the hinge pin 6permits the plate to properly adjust itself on the inclined edge 1d ofthe ring 1, thereby assuring even contact with the ring. Undue swingingor pivotal movement between the cover plate and the supporting link isprevented by means of the finger 5c of the link 5. The lower end of thisfinger lies adjacent the web lb of the cover plate and thus insuresproper positioning of the cover plate against the ring 1.

It should also be noted that the side edges of the link 5 are adjacentthe ribs 7:; of the cover plate 7, the link thus preventing lateralmovement of the cover plate with respect to the ring 1.

It will also be noted that the operation of drawing the clamp memberstogether serves to cause the end of the culvert to conform to the shapeof the ring, that is, if the end of the culvert has been deformed, theact of drawing the clamp members together will cause the culvert toassume the circular contour of the ring.

During flood periods, when the outlet end of the culvert is submergedbeneath the level of the flood waters, the pressure of the flood waterswill effectively maintain the cover plate in closed position.

From the foregoing, it will be apparent that the present constructionprovides an arrangement which will fulfill the objects herein set forth,and provides a simple, practical and reliable means for closing theoutlet end of a culvert without interfering with the proper functioningof the culvert.

Without further description, it is thought that the features andadvantages of the invention will be readily apparent to those skilled inthe art, and it will of course be understood that changes in the form,proportion and minor details of construction may be resorted to withoutdeparting from the scope of the appended claims.

I claim:

1. In combination with a culvert, a ilood gate therefor, comprising aring partially positioned 1 within the end of the culvert, complementarysemi-circular clamp members secured together in such relation. as togrip the end of the culvert between the clamp members and the ring, anda cover plate suspended from one of said clamp members, said ring beingprovided with a periph I and the end of said era-l annular rib having agently sloping rear face and an abruptly sloping front face.

2. In combination with a culvert, a flood-gate therefor, comprising aring partially positioned within the end of the culvert, complementarysemi-circular clamp members secured together in such relation as to gripthe end of the culvert between the clamp members and the 'ing, and acover plate suspended from one of said clamp members, said clamp membershaving a gently sloping rear portion and an abruptly sloping frontportion.

3. In combination with a culvert, a flood-gate therefor, comprising aring partially positioned within the end of the culvert, complementarysemi-circular clamp members secured together in such relation as to gripthe end of the culvert between the clamp members and the ring, a linkpivotally mounted on one of said clamp members and a cover platepivotally s spencled from said link, said ring being provided with aperipheral annular rib having a gently sloping rear face and an abruptlysloping front face.

In combination with a culvert, a flood-gate therefor, comprising a ringpartially positioned within the end of the culvert, complementaryserni-circular clamp members secured together in such relation as to theend of the culvert between the clamp members and the ring, a linl:pivotally mounted on one of said clamp members and a cover platepivotally suspended from said link, said clamp members having a gentlysloping rear portion and an abruptly sloping front portion.

5. In combination with a culvert, a flood-gate therefor, comprising aring partially positioned .1311 the end of the culvert, complementarysemucircular clamp members secured together in such relation as to gripthe end of the culvert between the clamp members and the ring, a linkpivot-ally mounted on one of clamp members and cover plate pivotallysuspended from said link, said link having a hook shaped lower portion.

6. In a ilood-gate for culverts and like conduits, an annular memberadapted to be inserted in the end of a culvert, said member being formedwith a rib on the peripheral surface thereof having an inclined rearface a-..apted to wedgingly engage the end of the culvert and a moreabruptly inclined front face, and segmental clamp members adapted to beapplied circumfcrentially the annular member and formed with co-actingportions adapted to wedgingly engage said rib culvert.

'7. A flood-gate for culverts, comprising an annular ring adapted to beinserted in the end of a culvert, and segmental clamp members securedtogether in such relation as to grip the end of the culvert between thering and clamp members, said annular ring and clamp members each beingprovided with an inclined face and an abruptly sloping face, theinclined faces gri ping: the end of the culvert therebetween as the clammembers are secured to the ring, and the abrupt faces coasting with eachother to exert an axial thrust to the ring to force it into the end ofthe culvert, and a cover plate suspended from one of the clamp members.

STEPHEN TREVERTON.

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